JPH03502781A - Nutsche processing filter drive device - Google Patents

Abstract

A drive unit for a nutsche filter which includes a drive shaft assembly and an impeller shaft assembly which rotate together but which telescope relative to one another. Moving parts of the overall drive shaft assembly are enclosed for protection from corrosion and wear problems. The drive unit is supported above a filter vessel and enters the vessel through a sealed opening.

Description

[Detailed description of the invention] Nusoche processing filter drive device The present invention is a nutsche process filter. Regarding the drive device for r), for more details, see The present invention relates to a drive device that can reduce wear and tear.

Nusoche filter is used for reaction, washing, drying, separation and other processing of solutions. This process forms a cake. Nutchefi The router may stir, shave, drain or smoothen (“process”) the cake. Can be done.

Some Nutsche filters have a rotating impeller inside the filter container containing the solution. It is configured to operate by lowering the lever. Device according to prior art In general, the impeller shaft is connected to the impeller through a gear system from the motor. It is driven by a reversible motor configured to transmit rotational motion to the shaft.

In operation, the impeller is immersed into a solution by a fluid (hydraulic or pneumatic) actuated arm. lowered and raised. Generally, the arm is connected to the impeller shaft through the yoke. connected to the top of the These fluid operated arms, motors and gear systems , constitutes the driving device of the Nutsche filter, and operates the Nutsche filter. However, it has some drawbacks.

In the existing Nunche filter drive device, the impeller housed in the filter container A motor and gear drive or drive is required to raise the shaft and impeller. It is necessary to raise either one of the shafts from their lowest position . In contrast, in the Nutsche filter drive device of the present invention, the drive shaft and gear drive There is no need to raise moving devices or motors from their fixed positions above the filter. The components of the drive can therefore be made up of stationary parts. .

Another drawback concerns the height of the Nuftche filter, which many Nuftche filters The filter has a height of more than 15 feet. The drive device is It is located at the top of the filter container and protects the motor and reducer from rising when the impeller rises. requires space for the impeller shaft to move. This vertical space is required for operation. This makes filters difficult to operate in many buildings. Also, impe The shaft is exposed to dirt and corrosion when raising the impeller.

These are not all the problems with the Nukache filter drive device; rather, This application describes potential areas for improvement.

Briefly, in the Nuftche filter device of the present invention, the drive shaft The upper end of the assembly is fixed vertically and the drive components are protected from the environment. The drive is mounted on the drive shaft assembly. The impeller can be raised and lowered without moving the end vertically. It has a telescopic drive shaft assembly. Also, The drive device controls the speed and direction of the impeller when moving the impeller vertically. can be changed.

Since the drive device can be made compact according to the present invention, the drive device can be isolated from the surrounding environment. can be rolled and lubricated. By performing this lubrication, the shaft and Seal wear can be reduced.

Briefly, the driving device for the Neuftche filter according to the present invention It has a shaft, the lower end of which is attached to the impeller, and the upper end of which is attached to the impeller. It is connected to a power source. The shaft assembly is connected to the upper drive shaft assembly. section (i.e. drive shaft assembly) and the lower impeller shaft section. (i.e. impeller shaft assembly), and both of these shaft sets the motions can rotate together, but they cannot move relative to each other in the vertical direction. It has become. Splines provided between these two shaft sections The structure allows both types of motion to be achieved.

The impeller shaft assembly is powered by a power transmission device that operates through the hollow part of the shaft. action is moved vertically. The power transmission device may be a fluid operated device or a mechanical device. In an embodiment of a fluid-operated device, a fluid-operated device is preferred. In this case, a reversible fluid circuit is provided in the hollow drive shaft section, which allows the drive The impeller shaft can be moved vertically by moving the fluid up and down through the moving shaft. The up and down flow occurs in two separate flow paths established within the drive shaft.

Structurally, the drive device of the Neuftche filter according to the invention is driven by a fluid power source. The drive device according to the invention preferably operates by a fluid motor, a speed reducer, a shaft , a guide assembly and a drive shaft assembly.

The drive device of the present invention is arranged on and in the drive housing disposed on the top of the filter container. , and provided below. The motor is rotatably connected to the reducer, and both of these components The components (motor and gearbox) are preferably mounted on top of the drive housing. stomach.

A guide assembly is disposed within the filter container below the drive housing. Ga The id assembly can now accept the lffl solid (driver shirt). ing.

The drive shaft assembly is connected at one end to the speed reducer.

The drive shaft assembly consists of the drive shaft, top flange, sleeve and impeller shaft. It has a shaft.

The drive shaft is connected to the reducer and is located inside the drive housing. In a preferred embodiment of the invention, the drive shaft has a double bore, at least It also has one horizontal passage and an external spline. Inside the double bore, both Tubes are placed to separate the stages. There is a fluid coupling at the top of the drive shaft. The shaft is located through separate stages from the fluid pump and reservoir. It forms a fluid passageway to the bore.

A top flange is disposed around the drive shaft, and the top flange is connected to the shoulder. and a neck. There is an O-ring between the neck of the top flange and the drive shaft. and other appropriate seals are in place to ensure a proper seal. ing.

Around the drive shaft there is a sleeve below and adjacent the top flange. bu is placed. This sleeve engages the outer spline of the drive shaft. An internal spline is provided.

An impeller shaft is arranged around the sleeve, and the impeller shaft is It is slidable through the guide assembly. The impeller shaft is near the top of the impeller shaft and connected to the sleeve and top flange.

A first buffing or other suitable system is provided between the guide assembly and the impeller shaft. The seals are placed in such a way that a proper seal can be obtained.

Additionally, there is a second banking or Other suitable seals are arranged between the drive shaft and the impeller shaft. A proper seal can now be obtained.

The drive device of the above preferred form of the invention has the impeller in its "up" position and It works like. First, the motor is activated and the rotational motion is transferred to the drive system via the reducer. The fluid is then passed through the coupling and tube to the pump pin. and drain from the lower end (bottom) of the drive shaft. Lower end of second buckling When the space between the hollow impeller shaft and the lower end is filled with fluid, the filter The impeller is lowered into the tank.

Once processing is complete, the impeller is raised. The impeller rises on the outside of the tube the bore of the drive shaft around the impeller shaft and the drive shaft and the second vane. Achieved by flowing fluid through a lateral passage leading into the space between the king and When fluid is pumped into this space, the impeller is raised.

The present invention provides several features not found in prior art drives. For example, the sleeve and impeller shaft move along the drive shaft. This allows the entire shaft assembly to be closed. . With this configuration, (1) The vertical space required for filter operation can be reduced; (2) Moving parts can be reduced. , can be protected from abrasion and exposure to dirt and corrosion, and (3) Vertical movement of the drive shaft, motor or drive mechanism can be eliminated.

The filter is rotationally driven by a single fluid motor. The motor is located at the top of the housing. The motor and reducer are preferably mounted on the Therefore, it is easy to repair and obtain. Several advantages of convenience are obtained.

The present invention has various other features and advantages, and those skilled in the art will appreciate that the present invention has many other features and advantages. The following description of a preferred embodiment with reference to the drawings will explain these features and and the benefits will become clear.

FIG. 1 is a partially sectional perspective view of a Nutsche filter incorporating the present invention.

FIG. 2 is a cross-sectional view of a filter according to a preferred embodiment of the invention, in which the impeller is This shows the lower position.

FIG. 3 is an enlarged cross-sectional view of a portion of the filter of the present invention, showing the drive shaft and impeller. This emphasizes the relationship between the two.

FIG. 4 is a sectional view taken along line 4-4&I in FIG. 3.

FIG. 5 is a partial sectional view of a filter with a screw-actuated drive.

FIG. 1 shows a Nutsche processing filter 10 of the present invention. includes a drive device 12, a housing 14, a container 16 and Ws18. Second A preferred embodiment of a filter incorporating a fluid drive device is shown in FIGS. It is. A screw-actuated impeller lifting mechanism is shown in FIG.

Afterlife track track! Driving bag! 12, a portion of which is disposed at the top and inside of the housing 14, respectively. It is. The drive device 12 includes a motor 20, a reducer 22, a shaft 24, and a guide assembly. It has a body 26, a drive shaft I-&U body 28, and an impeller 30.

Motor 20 and reduction gear 22 are arranged at the top of housing 14 . motor 20 is preferably a fluid motor, but may include other types of drive means, electrical or mechanical. You can also use A speed reducer 22 is rotatably attached to the motor 20. It is.

The drive shaft 24 is rotatably connected to the reducer 22 and has a separate flow It is in fluid communication with a body power source 25 (FIG. 1).

The drive shaft 24 has a bore 34 with a top 32, an upper stage 36 and a lower stage 38, at least one spline 40, at least one passage 42, shoulder 44 and screw 4 6.

A tube 48 is disposed inside the second-stage bore 34, and the bore 48 is arranged inside the second-stage bore 34. The upper stage 36 is isolated from the upper stage 8. The top 32 of the shaft 24 includes a rotary joint or A coupling 50 is disposed in fluid communication with the bore 34.

A guide assembly 26 is disposed inside the container 16 at the top of the container 16 and guides the container 16. Guide assembly 26 receives drive shaft assembly 28 . Guide assembly 2 6 has a ring 52 and a flange 54, and the ring 52 is attached to the top of the container 16. It is disposed within an opening 55 provided in the. At the top of the ring 52 A flange 54 is disposed therein. Flange 54 defines shoulder 56 and passageway 58. and is fixed to the ring 52.

The impeller shirt body 28 passes through the guide assembly 26 and onto the drive shaft 24. They are arranged so that they can slide freely around them. The impeller shaft assembly 28 has a top flange. 60, a sleeve 62 and an impeller shaft 64τ, and a top flange 6. 0 has a neck 66 and shoulders 68.

Top flange 60 slides around shaft 24 and adjacent shaft 24. They are arranged in a dynamic relationship. Between the remainder of the top flange 60 and the shaft 24 A bushing 70 is disposed at.

A sleeve 62 is disposed around the shaft 24 and below the top flange 60. Ru. The sleeve 62 includes a shoulder 72 and an internal spline 74. Line 74 is slidably engaged with spline 40 of drive shaft 24.

Impeller shaft 64 is disposed through guide assembly 26 and around sleeve 62. has been done. A shoulder 7 is provided around the top of the impeller shaft 64. , the impeller 30 is connected to the bottom of the impeller shaft 64. Also, in The lower end of the propeller shaft 64 is sealed.

The shoulder 72 of the sleeve 62 is aligned with the shoulder 68 of the top flange 60 and the impeller shaft 6. 4 and the shoulder portion 78 of FIG. These three components are tightened They are connected to each other by means 82 (preferably a nut-bolt construction).

A first backing assembly 8 is located between the guide assembly 26 and the impeller shaft 64. 4 is placed. This banking assembly 84 includes a compression flange 86, a puff 88, a bushing 89, a bottom flange 90, and a seal ring 92.

The compression flange 86 is secured to the guide flange by means of tightening means (preferably bolts) 94. 54. The seal ring 92 and bottom flange 90 are provided with a fastening means ( It is connected to the guide flange 54, preferably by bolts) 96. puffkin The flange 88 is located between the compression flange 86 and the bottom flange 90. van The king 88 is preferably constructed with a lantern ring 97 capable of relieving fluid and pressure. Delicious.

A second puff king is provided between the impeller shaft 64 and the lower end of the drive shaft 24. An assembly 98 is located. This second backing assembly 98 is Spacing ring 100, spacing ring 101, puff king 102, bushing 103 , a lower positioning ring 104 and a nand 106. Upper positioning Ring 100 is positioned against shoulder 44 of drive shaft 24 . buff The king 102 has an upper positioning ring 100 and a lower positioning ring 104. is located between. The Nand 106 is screwed onto the drive shaft 24 and is Holding the hooking assembly 98 in place.

The drive device 12 operates as follows. When the motor 20 is operated, the motor 20 and The rotational movement is transmitted to the drive shaft 24 via the engaged speed reducer 22 . Drive As the dynamic shaft 24 rotates, fluid is drawn from the fluid power source 25 and the tube 48 between the second banking drive 98 and the lower end of the impeller shaft 64. It is pumped into the space 110.

When the space 110 is filled with fluid, the lower end of the impeller shaft 64 is filled with the fluid. It is pushed out. This force causes the impeller shaft 64 to move on the drive shaft 24. The impeller 30 is lowered by sliding.

When the process is completed, the impeller 30 is raised. The impeller 30 directs the fluid outside of the tube 48 and raised by feeding it through the upper stage 36 of the bore 34. . Fluid passes through passageway 42 to banking assembly 98 and O-ring at top flange 60. into the space 112 between the plug or other suitable seal and onto the drive shaft 24. The impeller shaft 64 is pressed and raised.

As shown in FIGS. 1 to 4, an important point in the present invention is that the drive shaft 24 The sleeve 62 rotates independently of the rotational movement of the impeller shaft 64 that rotates therewith. It is capable of sliding along the drive shaft 24. This of the impeller shaft 64 Independent motion is particularly effective when performing filtration in Nusoche filters. .

Visit jIy1 summer FIG. 5 shows a second embodiment of the drive value W12 according to the invention. this screw The actuated drive 12 includes a two-piece shaft 120, a motor assembly 122, and a guide. a screwdriver assembly 26, a threaded impeller drive shaft assembly 124, and an impeller 30. are doing. This second embodiment is almost the same as the first embodiment shown in FIGS. 1 to 4, but , the main differences are the two-piece shaft 120, motor assembly 122 and drive shaft. A foot assembly 124 is provided.

The drive device 12 is otherwise substantially the same as the first embodiment shown in FIGS. 1-4. Ru.

The two-piece drive shaft assembly 120 includes a drive shaft 126 and a threaded shaft. 128, the drive shaft 126 has a bore 130 and an outer spline 13. 1. The threaded shaft 128 is located within the bore 130 of the drive shaft 126. The shafts 126, 128 are arranged to be rotatable and are therefore independent of each other. It can be rotated. Further, the screw shaft 128 is connected to the collar 132 and A screw portion 134 is provided.

A motor assembly 122 is located at the top of the housing 14 and includes a motor 20, a speed gear 22, screw shaft motor 136, gear reducer 138 and clutch 140. have. The screw shaft motor 136 is rotatably connected to a gear reducer 138. The cough gear reducer 138 is rotatably connected to the clutch 140.

The drive shaft 126 has the same configuration as the drive shaft 24, and is rotatably attached to the reducer 22. connected. The screw shaft 128 is rotatably connected to the clutch 140. and is held in a fixed vertical position by the clutch 140.

The impeller shaft assembly 124 passes through the guide assembly 26 to the drive shaft 12. It is slidably arranged around 6. Additionally, the impeller shaft assembly 124 is , sleeve 62, impeller shaft 64, drive shaft assembly (two-piece shaft) 120 and a stroke tube 142.

Sleeve 62 is disposed around drive shaft 126 and includes shoulder 72 and an inner A spline 74 is provided. The inner spline 74 is located on the outer side of the drive shaft 126. It is slidably engaged with the side spline 131.

Impeller shaft 64 is disposed through guide assembly 26 and around sleeve 62. It has a shoulder 78 and a base plate 144. base plate 144 seals the lower end of the impeller shaft 64. shoulder of sleeve 62 The bottom of section 72 is secured to the shoulder of impeller shaft 64 by means of suitable tightening means 146. It is connected to the top of 78.

A bushing 148 is connected to the lower end of the drive shaft 126. 8 is a threaded stroke tube (threaded stroke tube) 14 Uke has included 2.

One end of the threaded stroke tube 142 is connected to the base plate 144. and the other end extends through bushing 148.

The stroke tube 142 receives the threaded portion 134 of the threaded shaft 128. It is now possible to do so.

This second embodiment also differs in the method of vertically displacing the impeller shaft. Except for this, it operates in the same manner as the first embodiment. Impeller shaft in this second embodiment The vertical displacement of the point is done as follows. First, the screw shaft motor 136 is When actuated, clutch 140 engages threaded shaft 128 and rotates the threaded shaft 128. 128 is rotated. When the threaded shaft 128 rotates, the stroke tube 1 42 is loosened and the impeller shaft 64 is lowered. impeller 30 Once the desired height within the filter is reached, either disengage clutch 140 or Adjust so that it lip.

The impeller 30 is first raised by reversing the screw shaft motor 136. Next, the clutch 140 is actually screwed into the stroke tube 142. The threaded shaft 128 is engaged with the threaded shaft 128. Clutch 140 is connected to impeller 30 as desired. When it reaches a height of , it is either uncoupled or adjusted to slip.

The above description of preferred embodiments of the invention is intended to be illustrative and not restrictive. This is a description of the best mode of the invention.

international search report S^　　　33237

Claims (18)

[Claims] 1. In the Nutsche filter, (a) A laterally arranged filter plate, an opening provided at the top, and a bottom a sealed filter container having a drain provided in the section; (b) an assembly of an impeller and a tubular impeller shaft; A propeller is laterally disposed within the filter container above the filter plate. The tubular impeller shaft has a lower end connected to the impeller. connected in a rotatable and axially slidable sealed relationship. (c) the tubular impeller extending through the closure of the filter container; the impeller in rotatable and axially sliding relationship with the shaft; a hollow drive shaft mounted within the shaft; (d) coupled to the drive shaft and about the longitudinal axis of the drive shaft; a first power drive transmission device that operates to rotate the foot; (e) connectable to the impeller shaft through the drive shaft and the drive shaft; is operable to axially move the impeller shaft relative to the shaft; A Nutsche filter further comprising a second power drive transmission device. 2. The claim is characterized in that the second power transmission device includes a fluid power drive device. The Nutsche filter according to the first item. 3. The second power transmission device includes a mechanical power transmission device. A Nutsche filter according to claim 1. 4. a spline connecting hand disposed between the drive shaft and the impeller shaft; Nutschefil according to claim 1, further comprising a step. Ta. 5. The fluid power drive includes two fluid flows disposed within the hollow drive shaft. further comprising body conduits, the first of which is connected to the impeller and the impeller. applying fluid power to the assembly with the impeller shaft to move the impeller shaft in the first direction; axially, and a second conduit applies fluid power to the impeller shaft assembly. act to move the impeller shaft in an axial direction opposite to the first direction; Nutchefi according to claim 2, characterized in that it is configured to Luta. 6. The mechanical power transmission device further includes a screw, the screw providing reversible mechanical movement. an assembly of the impeller and the impeller shaft and a screw connection connectable to a force drive device; and the assembly is configured to be movable in the axial direction relative to the screw. A Nutsche filter according to claim 3, characterized in that: 7. In a drive device for operating a Nutsche filter, a. motor and b. a shaft rotatably connected to the motor; c. sliding against the shaft a spindle disposed on the shaft so as to be able to rotate with the shaft; Reeve and d. means for controllably moving said sleeve along said shaft; A drive device for operating a Nutsche filter, comprising: 8. The invention further includes a reducer disposed between the motor and the shaft. 8. The drive device according to claim 7, characterized in that: 9. said means for controllably moving said sleeve on said shaft is fluid actuated; 8. The drive device according to claim 7, further comprising a shape device. 10. Claims characterized in that the motor and speed reducer are operated by fluid. 9. The drive device according to item 8. 11. In a drive device for operating a Nutsche filter, a. motor and h. a speed reducer connected to the motor; c. a spline shaft coupled to the speed reducer; d. said spline shaft and have a relationship in which they can rotate together and slide in the axial direction with respect to the spline shaft. a spline sleeve engaged with the spline shaft; e. The splatter means for controllably sliding an insleeve along said splined shaft; A drive device for operating a Nutsche filter, comprising: 12. the motor and means for controllably sliding the spline sleeve; 12. The drive device according to claim 11, wherein the drive device is operated by fluid. 13. In a Nutsche-type filter drive assembly, (a) a hollow impeller shaft; The lower end of the impeller shaft is closed and attached to the impeller. It is now possible to attach (b) having a hollow drive shaft, the drive shaft being connected to the impeller shaft; The impeller shaft can be slid longitudinally in a sealed manner against the shaft. disposed within the impeller in rotational relationship with the drive shaft; The upper end of the foot is rotatably driven, and (c) the upper end of the further comprising a power transmission means disposed, the power transmission means being connected to the drive shaft. power is transmitted to the impeller shaft through the It is characterized by operating to move up and down in the axial direction with respect to the drive shaft. Nutsche type filter drive assembly. 14. In a drive device for a closed Nutsche filter with a filter container, (a) a motor disposed on the top of the filter housing; and (h) a motor that rotates the motor. (c) a speed reducer rotatably connected to the speed reducer; a drive shaft having (i) at least one longitudinal spline; and (ii) an upper A two-stage bore consisting of an upper and a lower stage where the diameter of the stage is larger than the diameter of the lower stage, (iii) at least one passageway entering the upper wall; (iv) a shoulder; (v) a screw provided at the lower end of the drive shaft; (d) having an impeller shaft assembly disposed about said drive shaft; the law of nature, (e) the impeller shaft assembly: (i) said drive shaft in rotatably and axially slidably sealed relation; a top flange disposed around the shaft; (ii) a sleeve disposed around the drive shaft, the upper end of which attached to the top flange and having the spline drive shaft at the other end. a sleeve provided with at least one internal spline capable of engaging the foot; , (iii) a hollow impeller shaft disposed around the sleeve, hollow with a top end attached to the top flange through the sleeve It is equipped with an impeller shaft, (f) connected to the filter container and sliding against the impeller shaft; a gas disposed around the impeller shaft in a movable and rotatable relationship; The guide flange has a guide flange that is connected to the impeller of the Nutsche filter. (g) the opening in the shaft can be closed; a packing assembly disposed about a drive shaft, the packing assembly comprising: a packing assembly disposed about a drive shaft; and the impeller shaft to seal the annular space under the sleeve. a king assembly; (i) disposed between the drive shaft and the impeller shaft below the shoulder; (j) a nut screwed onto the screw of the drive shaft; A closed Nutsche filter with a filter container, further comprising: drive unit. 15. Drive shaft assembly that can be installed inside the Nutsche filter housing Leave it behind. (a) has a hollow impeller shaft with a closed lower end; The foot is connected to the Nutsche filter in such a way that it can slide but not rotate. It is now possible to enter the inside of the housing and attach the lower end to the impeller. (b) a flange attached to the second upper end of the impeller shaft; and, (c) a cylindrical hollow race disposed within the impeller shaft; a cylindrical hollow race having a first upper end attached to the flange; (d) a set of longitudinal strips provided around and within the second lower end of the hollow race; Prine and (e) a hollow drive shaft, the drive shaft having a first upper end thereof; first located within said race in rotational relationship with said drive system; The shaft is attached and sealed to a power source capable of rotating it (f) said driver is threadable through said flange; a set of longitudinal splines disposed about the first end of the motion shaft; a pair of longitudinal splines combined with a pair of splines provided on the race; further comprising a spline, one of the two sets of splines; Nutsche filter housing characterized by a longer in-line than other sets of splines Drive shaft assembly that can be installed within the engine. 16. A longer spline of the splines is provided on the drive shaft. 16. The drive shaft assembly of claim 15, wherein: 17. A hollow portion of the drive shaft has a relatively large diameter upper stage and a hollow portion of the passageway. and a relatively small diameter lower stage disposed below the drive shaft assembly. the volume further comprises a tube extending downwardly through the two stages; The tube is sized to fit snugly into the lower tier, and is sized to fit snugly into the upper tier. Claims characterized in that an annular space separating two stages is formed within the range. A drive shaft assembly according to clause 17. 18. (a) below the lower end of said race and around the lower end of said drive shaft; a bushing attached to the impeller shaft in sliding relationship; (b) a bushing fitted within said hollow drive shaft in rotational relationship; a threaded shaft arranged to cooperate with the drive shaft to form an annular space; (c) in combination with the threaded shaft to pivot the threaded shaft within the annular space; A tubular member having an internal thread formed at the upper end that can be screwed in in the linear direction. a lower end of the tubular member is attached to the closed lower end of the impeller shaft. 17. The drive shaft according to claim 16, wherein the drive shaft is attached to the drive shaft.